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ASoC: mxs-saif: Handle errors in trigger function 

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Markus Pargmann 2013-10-11 12:11:04 +02:00 committed by Mark Brown
parent 88cf632a13
commit 863ebddec8
1 changed files with 17 additions and 5 deletions
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22
sound/soc/mxs/mxs-saif.c
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@ -494,6 +494,7 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
struct mxs_saif *master_saif;
u32 delay;
int ret;
master_saif = mxs_saif_get_master(saif);
if (!master_saif)
@ -508,21 +509,32 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
dev_dbg(cpu_dai->dev, "start\n");
clk_enable(master_saif->clk);
if (!master_saif->mclk_in_use)
__raw_writel(BM_SAIF_CTRL_RUN,
master_saif->base + SAIF_CTRL + MXS_SET_ADDR);
ret = clk_enable(master_saif->clk);
if (ret) {
dev_err(saif->dev, "Failed to enable master clock\n");
return ret;
}
/*
* If the saif's master is not himself, we also need to enable
* itself clk for its internal basic logic to work.
*/
if (saif != master_saif) {
clk_enable(saif->clk);
ret = clk_enable(saif->clk);
if (ret) {
dev_err(saif->dev, "Failed to enable master clock\n");
clk_disable(master_saif->clk);
return ret;
}
__raw_writel(BM_SAIF_CTRL_RUN,
saif->base + SAIF_CTRL + MXS_SET_ADDR);
}
if (!master_saif->mclk_in_use)
__raw_writel(BM_SAIF_CTRL_RUN,
master_saif->base + SAIF_CTRL + MXS_SET_ADDR);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
/*
* write data to saif data register to trigger